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| Criterion |  UX Research Affinity Diagramming |  Operations Family Tree Analysis |  Operations 8D Problem Solving |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Low | Medium | High | Medium |
Timedifferent | 45–90 min | 2-4 h | 1-6 Wochen | 1-4 h |
Participantsdifferent | 3-10 | 2-6 | 4-10 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Theme clusters, Insight statements, Opportunity areas | Family Tree Diagram, Pattern Notes, Systemic Measures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tags1 shared | SynthesisQualitativeRoot cause | Root causePatternsIncidentSystemic | QualityProblem solvingRoot cause | Root causeProblem solvingQualityIncident |